United Scientific WSAL06 Aluminum Hooked Weight Set, One Each of 100g, 50g, 40g, 30g, 20g, 10g Save 4.14$ 29.03$
ULTECHNOVO Slotted Mass Set, Small Weights for Craft Metric Slotted Weight Set 10g 20g 50g 200g with Hanger and Case Total 350g for Laboratory School 11.99$