Why not try every size?. Elastic Bands - All Sizes. Elastic/Rubber Bands - All Sizes. Completley reuseable & long lasting. High Quality Strong Durable Rubber. Natural Rubber Material. Variations ranging in sizes of - 14, 16, 18, 19, 20, 24, 33, 34, 36, 38, 40, 63, 64.
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