Over extension slides or travel allows drawers to open beyond full extension, providing complete access. Jinruda offers 150% extension. Every slide's length is 200 mm each, and the width is 27 mm. The slide is rated for 77 lbs (35 kg). We use quality cold-rolled steel to make both slides and ball bearings which are electroplated by blue white zinc. All drawer sildes with different models made by Jinruda are used smoothly and stably. Look forward to your inquiries.