These feet allow you to reduce the noise of your printer by dampening out vibrations with squash balls.

I printed them in Prusament Orange PETG to match my printer, but any material will work.

Here is an amazon link to a 4-pack of squash balls that you need to work with the feet: 

[https://www.amazon.com/Tecnifibre-Double-Yellow-Squash-Balls/dp/B01NBLQ12U/ref=sr_1_4?dchild=1&keywords=squash+balls&qid=1626379656&sr=8-4](https://www.amazon.com/Tecnifibre-Double-Yellow-Squash-Balls/dp/B01NBLQ12U/ref=sr_1_4?dchild=1&keywords=squash+balls&qid=1626379656&sr=8-4)

You'll also need M6x10mm flat head screws:

[https://www.amazon.com/uxcell-M6x10mm-Machine-Stainless-Fasteners/dp/B07WCTR1KF/ref=sr_1_3?dchild=1&keywords=m6x10mm+flat+head+screws&qid=1626379910&sr=8-3](https://www.amazon.com/uxcell-M6x10mm-Machine-Stainless-Fasteners/dp/B07WCTR1KF/ref=sr_1_3?dchild=1&keywords=m6x10mm+flat+head+screws&qid=1626379910&sr=8-3)

And drop in fasteners to attach them to the t slots like these:

[https://www.amazon.com/PZRT-50-Pack-Nickel-Plated-Aluminum-Accessories/dp/B077Z2HX42/ref=sr_1_8?dchild=1&keywords=30mm+m6+t+nuts&qid=1626379859&sr=8-8](https://www.amazon.com/PZRT-50-Pack-Nickel-Plated-Aluminum-Accessories/dp/B077Z2HX42/ref=sr_1_8?dchild=1&keywords=30mm+m6+t+nuts&qid=1626379859&sr=8-8)