Neotech Acoustic Guitar Bridge Pins (7901124) Attaches easily and securely with touch fasteners to most straps while elastic grippers hold it firmly in place. Conforms snugly to the transmitter to protect it from impact, dust and moisture. Keeps your transmitter readily available and close to your instrument at all times. Approx. size: 4.0" X 2.5" X 0.8" (10.2cm X 6.4cm X 2cm)