Super Endpin ball attachment for Upright Bass (tip, cover)

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  • Super Endpin ball attachment for Upright Bass (tip, cover), close up
  • Super Endpin ball attachment for Upright Bass (tip, cover), in package
  • Super Endpin ball attachment for Upright Bass (tip, cover), on endpin
  • Super Endpin ball attachment for Upright Bass (tip, cover), on endpin 2
  • Super Endpin ball attachment for Upright Bass (tip, cover), specifications diagram
Our Low Price: $21.00

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  • Loctite single use pack, 243 medium strength (blue)


This is a very cool idea -- wish I'd thought of it!

This little device is the cure to dreaded "spouse comments about holes in carpet" as well as dirty looks when you spike your bass into somebody's wooden floor. It also will help avoid having your endpin skid across smooth surfaces.

This semi-hard solid rubber ball may outlast either of us! It is made so your endpin goes up to one inch into the ball, depending on the sharpness of the tip. It is designed to handle the tip or blunt end. It's simple -- you dial the small screws to size it to your endpin, and then use the larger knob to tighten it.


The sleeve is just large enough for the popular 10mm endpin shaft size, and can be easily dialed down to the 8mm size, or other sizes smaller than 10mm. For the metric-impaired, 10mm is .39 inches (25/64th), a bit larger than 3/8", so the endpin ball will fit a 3/8" endpin as well. It won't fit a 12mm endpin, or a 14mm endpin, etc. Nothing bigger than 10mm (smaller is fine, though.)

We do not accept returns on the endpin ball for refund - we will only offer a store credit, and you'll need to acknowledge that before you can add it to your cart - so please measure BEFORE you order one.

What/how do you measure to make sure it fits your bass?

The endpin ball will fit an maximum endpin diameter of 10mm, which is around 3/8". If the end section of your endpin is larger than 10mm or 3/8", do not buy the endpin ball, it will not work with your endpin. Size matters!

example of a caliper for measuringThe best tool for measuring is a caliper (see photo at right), which is a simple tool with jaws that open and close and tell you the distance between them. Basic ones can be purchased very cheaply at Harbor Freight and other hardware stores.

Open ended box wrench exampleDon't have a caliper, and need an easy way to determine if your endpin diameter is too large? Here's what you do: grab a 10mm open-ended box wrench (see photo at right) out of your toolbox (the size is stamped on the side of the wrench). If the wrench can straddle the post where the ball would go (even if it's touching) then congratulations, the endpin ball should fit your endpin!

See the last product photo above for a visual description of the endpin ball's dimensions, to ensure fitment. Also note that if your endpin has a "collar" near the point, you should also check the details in that photo to make sure that it won't interfere.

To save you some time, this will definitely not fit the stock (bare steel) Kay or Engelhardt endpin, which is 1/2".

While this endpin ball is robust and durable and should last years if not abused... nothing is permanent, and, depending on use, it will eventually need to be replaced if significantly worn. We've asked, and the manufacturer does not supply replacement components (like the rubber portion) so if you wear yours down, you'll need to purchase a new complete endpin ball (or maybe get creative with a large superball and a drill).

Use of threadlocking compound to prevent loosening of the endpin ball

We recommend the use of threadlocker (Loctite is a popular brand) to keep the set screws from vibrating out with use. You can source it locally (get the NON-PERMANENT version - the permanent grade may as well be superglue, and you'll never get those screws to move again!) We also now offer a small tube of Loctite as an add-on item. The .5ml mini bottle is more than enough for several applications (the tiny set screws only require about 1/2 a drop or less to be effective.) Just another way we're looking out for you!

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10 Reviews

  • 5

    Great for upgrade for cheap endpins

    Posted by Judson on May 30th 2024

    I used this to replace the worn-through "chair foot" style endpin stopper on my cheap czech import bass. I have a 6mm endpin with well over the recommended minimum length below the collar. I was worried that the base of this stopper wouldn't reach the collar, but the inside of the ball is hollow, and so it fit right up against the collar without issue. I went the optional loctite, and after the first couple forrays it hasn't moved. I don't gig often enough to really test the durability concerns that I read in reviews here and elsewhere, but I would say this is an excellent upgrade cheap endpins and weekend warriors.

  • 5

    A Huge Improvement over Endpin Covers

    Posted by Fred Aron on Jul 14th 2023

    I purchased knowing it would not fit, but after about 3 minutes in the shop, I widened the opening and perfection. Seriously, this thing is long lasting (about 3 years now), and is very solid.

  • 5

    Always keep a few!

    Posted by Jeff Dalton on Apr 4th 2023

    I love this end-pin ball. Holds the bass nice and steady. I travel with my almost bass every day, and it sees its share of west and tear - I lose the end pin ball or stopper frequently because it gets pulled in in the truck. . I keep a few in the bag for emergencies. Great product!

  • 3

    Super Endpin ball attachment for Upright Bass

    Posted by Simon Wojcik on Feb 19th 2023

    I purchased this when I was playing primarily in a seated posture. I think it was as a result of that that this thing did not last very long. I wore through the rubber ball within a few months. Now I use a Rabbath style wooden endpin and play standing. I have a feeling that it would work well if someone were to use it in a standing posture.

  • 2

    Doesn't Last

    Posted by Matt on Jun 22nd 2022

    I've used this for maybe a year and a half and it's completely worn through. Expected a longer lifespan for the price.

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