1:slide guide rails 2:Bottom/side mounted 3:Galvanize, cold roller steel 4:2,000,000pairs/month 5:Passed ... ISO9001:2000 45mm Soft-closing Full extesion ball bearing slide guide rails ... . 3.45mm width three fold ,thickness of 1.2*1.2*1.5mm, 75gram/inch 4.Feature: self close ... 44FEY2-24" 600 605224 288160 12812840 3225 44 2.Rich Experience:We have been engaged in the ball ...