- Stainless steel ball bearings - 550mm closed length - 57mm high - Lock in and Lock out feature - Dis – connectable - Full extension - Zinc plated - Ideal for carrying loads up to 125 kg - Locking leaver adds 25mm to overall closed length - Price for 1 pair Medium Duty Lockable Draw Slides. Very Reliable and Hard Wearing. These Draw Slides are great for any environment whether it be for work or leisure. They are able to be used in a number of application from camper trailers to vans and everything in between. One of the main features of these Draw Slides is that it is a Lock In & Lock Out, which means that when it id the closed position it is locked and won’t slide open. The same goes when it is in the open position.