The rocklocks 53 delrin tension rod locks standard size is a must have for any gigging drummer. This pack of 10 includes locks that are compatible with most drum brands so you can keep your kit in pristine tune before during and after every performance. The robust construction makes them reliable even in the toughest performing conditions ensuring that your drum tones remain consistent throughout your set. Designed to offer maximum tuning accuracy these locks ensure you can make the most of your performance. With a secure fit and superior reliability these tension rod locks will ensure your drums are always in showtime condition allowing you to focus on the music. Ideal for any drummer wanting a quality sounding kit without the hassle of retuning the rocklocks 53 delrin tension rod locks will help you get the most out of every performance. Compatible with most drums made by dw pdp pearl ludwig gretsch sonor mapex yamaha sjc q drum co. Cc ocdp and pork pie. The rocklocks 53 delrin tension rod locks are the perfect addition to your kit. Please noteif you own gretsch usa custom pearl reference or dw collectors drums these drums typically use extra large tension rods making it more difficult to fasten rock locks on. The rock locks will still work just make sure to line up the square top of the tension rod with one of the squares inside of the 12 point star.