When you need big lifting capacity for heavy-weight objects like large glass panes, this is the suction cup handle you’ll reach for. Twin large 4-1/2″ suction cups grab surface area and hold tight for up to 80 lbs of lift capacity. Heavy-duty 1/4″ thick rubber and individual vacuum levers for sure grip when it matters. Rugged impact-resistant ABS construction. Overall size 13″ x 4.5″; 1.5 lbs. For best results, use on smooth non-porous surface; both surface and rubber cup should be clean and free from dirt. Apply pressure to handle against surface while lifting levers; lubricating cup rim with small amount of rubber preservative or other liquid typically enhances rubber-to-surface seal and helps improve vacuum strength. Applying excessive lubrication may allow undesired cup movement on surface.