all4fit BIKE MOUNT tube mount for amazon tap alexa speaker and other bluetoothe speakers white perfect fit Amazon Tap (not ECHO) speaker and any speaker (dia 2.6 inch / 6.6cm) Perfect for bicycle seatpost, handlebars, poles and more, fits 0.75'' to 1.4'' (19mm to 35mm) diameter tubes. Suitable for bicycling, mountain biking, motocross and other action sports. give your speaker a cosy place to stay, great gift idea for friends for sale is MOUNT ONLY only. (device and accessories are not included)