Bass Drum O's 5" Brass Bass Drum Port Rings bass 32-130 All Rotosound music strings are

All Rotosound music strings are manufactured in England

5 mm TRS to Dual RCAF

Grand Auditorium shape with Venetian cutaway

Side Adjustable Toe Clamp

Bass Drum O's 5" Brass Bass Drum Port Rings bass 32-130 All Rotosound music strings areBass Drum O's 5" Brass Bass Drum Port Rings. Replicating the original bass drum hole reinforcement, these have a snap on design. The O's allow for minimal head removal with more variety in tunable ventilation as well as external microphone access. Features 5" Round Brass finish Protects your port from rips, snags, and tears Adhesive rings used to hold the Bass Drum O's in place Alcohol swab included for a clean, permanent application