CANOPUS BTB-52 [BoltTight Tuning Bolts / Pack of 20] cartridge A low-cut filter eliminates unwanted

A low-cut filter eliminates unwanted low-frequency noise

Dimensions and weight: 95mm wide x 20mm high x 139mm deep

The zippers and fasteners are made by reliable YKK

Bottom medium heavy *The image shows the 14-inch model

This model has a dot attached to the center of the back

CANOPUS BTB-52 [BoltTight Tuning Bolts / Pack of 20] cartridge A low-cut filter eliminates unwantedCANOPUS BoltTight tuning bolts installed "Bolt Tight" is a washer made from genuine leather with special processing. It has been highly praised and used by domestic and international artists and overseas drum manufacturers for many years. BTB eliminates the hassle of attaching Bolt Tight to the bolts, making it easy for anyone to attach to the drum. Please check the compatibility table before purchasing. Bolt Tight Tuning is now so easy! Amazing