Dumbbell disc holder

This dumbbell disc holder is designed for concrete-filled plastic dumbbells (10 kg type). It fits discs sized approximately 110×30 mm, 90×30 mm, and 70×32 mm — all from one dumbbell set. The rack is simple, lightweight, and easy to print (about 350 g of filament). Printed in PLA, it’s sturdy yet not too heavy — perfect for keeping your discs neatly organized during the training session.