LIFTING CAPACITY & DIMENSIONS: The maximum lifting load capacity of 220 lbs level, load capacity 176 lbs vertical. High performance suction. The length of the full suction window lifter is 12.8 inches, the diameter of the suction cups is 4 .7 inch,the thickness of the suction cup is 7mm. HIGH QUALITY: The premium glass cupping extractor motor made with durable aluminum body, electric polishing, glass cupping natural rubber and sturdy plastic handle. MULTIPLE USES: The convenient double-handled suction cup lifter can stick firmly to any clean, non-porous flat surface, an ideal and essential tool for lifting and moving glass, sheet metal, granite, furniture, appliances, etc. ESSENTIAL TOOL & EASY TO USE: Save handling time and labor. Makes work easier, reduces the risk of accidents. Easy to control, suitable for anyone to operate, repair the dent directly by yourself, bring much convenience for lifting. STORAGE & NOTE: When using the suction cup, you must keep the cup in a clean and dry condition. And pay attention to moisture, sunscreen. No water, no oil. Should be mounted on a dry, clean, smooth, flat, non-porous surface.