Product description Use the cup on clean, relatively smooth, nonporous surfaces, at temperatures from 10 to 120 Fahrenheit . Moisture or contaminants can reduce the slip resistance of the cup. The red-line indicator may not perform reliably at elevations above 5000 feet. To Attach 1) Position the hand cup on the contact surface so the red line will be visible if it should appear while lifting the load. CAUTION: Test the cup for staining or deformation of load surfaces with light colors or soft coatings. 2) Pump the plunger until the cup attaches completely. When the red line is hidden, vacuum is sufficient for lifting. 3) Check the plunger frequently to make sure the cup remains securely attached. If the red line appears while lifting, set down the load immediately and pump the plunger until the red line is hidden again. To Release 1) Set the load on a secure support. 2) Press the valve release lever until the cup disengages completely. Maintenance Since aging and wear reduce the capacity of the rubber pad, it should be replaced at least once every 2 years or whenever cuts, slits or other surface damage is discovered. Always inspect vacuum pads before use. Clean vacuum pads and the load surface between each lift. Make sure both surfaces are dry and free of any dirt or obstruction. Make sure plunger has enough lubrication for pump. DAMO warrants the included hardware product and accessories against defects in materials and workmanship for one year from the date of original retail purchase. DAMO does not warrant against normal wear and tear, nor damage caused by accident. RPVSC08 MVSC08 RPVSC10 MVSC10 CVSC10 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 567 4.4 out of 5 stars 194 4.5 out of 5 stars 200 4.4 out of 5 stars 194 3.5 out of 5 stars 5 Price $35.80$35.80 $39.90$39.90 $64.80$64.80 $68.80$68.80 $65.80$65.80 Cup Diameter 8" 8" 10" 10" 10" Suitable Surface Flat Flat Flat Flat Flat and Curved Handle Material ABS Plastic Aluminum ABS Plastic Aluminum ABS Plastic Load Capacity 200 lbs 200 lbs 265 lbs 265 lbs 265 lbs