Water Bottle Holder - 3 Sizes - Prints Flat

thingiverse

These clamps are designed to securely hold various items in place on 20mm tubes found on bicycles, tables, and wheelchairs. Two key improvements were made from the previous version: strengthening the rings to a sturdy 4mm thickness for withstanding rough handling and manufacturing them straight instead of curved. The adjustable rings come in three standard sizes: approximately 65mm, 70mm, and 75mm. To assemble these clamps properly, you will need four M3 hex nuts and four M3x20 screws.