Armstrong Tumbler Handle

Looking for a handle for your tumbler?

With its lightweight, 28g "I-beam" (channel) rib design, it’s built for everyday durability. I intentionally aligned the print orientation with the load path to create true "muscle fiber" strength.

Small but sturdy. It easily carries my 80mm heavy-duty stainless tumbler without a single complaint.

Note: Since this is a handmade 3D-printed project, you might need a tiny touch of a hobby knife for the perfect fit—that’s the beauty of making your own gear!

Give it a try and enjoy this product, packed with passion by Japanese engineers!

Japan-made quality!
Strong!
Light!
Heavy duty!