Professional double-end speed bag kit for developing boxing skills including speed, reflexes, timing and accuracy Genuine full-grain cowhide leather exterior is built to last Hand-stitched and balanced to ensure a symmetrical shape and predictable rebounds Meister SpeedKills lightweight inner latex bladder for faster performance and lighter bag feel Kit includes 18" bungee, 24" bungee, and four quick lock carabiners for the perfect setup in spaces with 7.0 - 9.5 feet of floor-to-ceiling clearance Double-sided rivets provide reinforced load transfer and strength Ideal for both commercial gym and home use Available in Small (5"), Medium (7") & Large (9") sizes