[Only Compatible with Mason-type jars] Sealer's body made of Silica gel, BPA free, non-toxic and odorless. Wide Mouth Sealer can only be used for Wide Mouth Mason Jars. Regular Sealer can only be used for Regular Mouth Mason Jars. color: White Material: Silicone Package Contents: 2 x closure caps(1 , 1 small) 1 x hose 2 x mason caps (1 , 1 small) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 4.Plus blisters done immediately open - convenient for travel. to activate 3.Free from chemicals & detergents 2.No expiry date - store in a dry place from moisture 1.A clean towel