[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. The tripod mount ring is specially made for EF 70-200mm f/4L Lens, EF 70-200mm f/4L IS Lens, EF 70-200mm f/4L IS II Lens, EF 400mm f/5.6L Lens, EF 80-200mm f/2.8L Lens The lens collar is referencing to and modified from original standard , bearing is enhanced, details are improved, and added the features of quick release plate The lens holder bottom is 39mm - fit Quick Release Plate, Compatible with / - / / / / / / MARSACE / tripod ball of 39mm fit High temperature die casting molding of metal, CNC processing, car paint on . Built-in film, copper knob and stainless steel anti-skid nails The this lens support bracket inner diameter is about 65.5mm, width is about 18mm; split-structure, bottom is 60mm length quick release plate, with 1/4inch and 3/8inch screw holes