Printed with Prusa xl, pla hardware bought on Amazon. Fits 2” 5lb plates. 

Fitarc Wrist Bar,Forearm Strengthener,Wrist Curl Bar,Grip Strength Trainer, Wrist Bar,Wrist Rotation Exerciser,Wrist Forearm Strengthener https://a.co/d/00GyoKiL

Joamang M12-1.75 x 45mm 6Pcs Hex Bolts, Hexagon Head Screw, 8.8 Grade Alloy Steel, Black Oxide Finish, Metric Full Machine Thread https://a.co/d/00XfjikV

Sackorange 10 PCS R8-2RS Double Rubber Sealed Roller Ball Bearing 1/2 Inch Bore 1/2 x 1-1/8 x 5/16 Inch ABEC3 Precision Bearing for Electric Motor, Wheels, Home Appliances, Garden Machinery https://a.co/d/037GtVIB

BNUOK 20Pcs M12-1.75 Lock Nuts, Nylon Insert Locknuts 304 Stainless Steel A2-70 Black Zinc Plated Self-Locking Nuts, Coarse Thread Hex Nylock Nut https://a.co/d/02WiynUy

binifiMux 20pcs M12 Flat Washers(OD=24mm, 2.5mm Thickness) Black Large Fender Gasket Grade 8 Carbon Steel https://a.co/d/00LyIiYh

5mm set screw to lock in the bar.