This set includes 4 cup inserts, 2 each of the most used sizes. Sizes are listed in the picture. These inserts are made from EVA.
EVA has a high density and moderate hardness with little elasticity so it will “bounce back” better than traditional foam rubber. The better fit should make your cups more stable.
Since EVA is waterproof it can be cleaned and sanitized easily.
Fits 1/2″ PVC
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