Pure Subwoofer Second-Order Crossover Speaker Frequency Divider DIY Home Theater

[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.