BG300 Adjustable Head Pad Dock Seal is designed to suit door openings up to 2438mm x 3048mm to 2743mm x 3048mm as well as to accommodate a variety of trailer heights. The foam head pad is raised and lowered on a track roller system while the torsion spring with integral follower curtain makes it easy to create a tight seal. By sealing all gaps that could let in water or dust, the BG300 Adjustable Head Pad Dock Seal protects employees and cargo during the cross-docking process. Ideal for applications that involve variations in trailer heights.