Buy 10 pieces, get one free!
Polyurethane insert is made of super wear-resistant high-grade polyurethane material,
the wear resistance is at least 4 times more than Silicone!
Polyurethane rubber inserts were specially processed to increase friction!
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Screw cap chuck(S) match with Silicone insert (S) and Polyurethane insert (S)
The size of the Silicone insert(S) is the same as that of the Polyurethane insert (S),
they are suitable for caps with diameter of 0.78 ~ 1.18 in.( 20~30mm).
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Screw cap chuck(L) match with Silicone insert (L) and Polyurethane insert (L)
The size of the Silicone insert(L) is the same as that of the Polyurethane insert (L),
they are suitable for caps with diameter of 1.18 ~ 1.58 in.( 30~40mm).
Welcome to wholesale or distribution !