Designed to fit your Tri-Tronics G3 Sport Series transmitter. This holster is made of durable nylon Cordura®. Very convenient with a quick release cell-phone-type clip to be worn on your belt. Great protection for your Tri-Tronics transmitter. This holster also aids in assuring that you don't lose your transmitter in the field. Works with the new Tri-Tronics G3 Sport Series transmitters (Sport Basic, Sport Combo, Sport Upland, Vicebreaker G3, Pro Control G3).