High Quality Materials - Made from high-quality rubber, our air cushion wedge features double-sided TPU molding for superior compression and wear resistance. Designed for durability and safety, it supports heavy loads after inflation with an 8 cm slot distance. Approximately 0.2 cm thick - The slim profile and built-in rigid plate allow the air wedge to easily fit into narrow gaps, expanding application versatility. Compact when deflated for convenient storage. Double sealed edge - Engineered with double sealing technology to ensure airtight performance and prevent air leakage during use. Avoid over-inflation during operation. Maintains stability with an 8 cm slot distance after inflation. Saves time and effort - This air cushion wedge is an effective tool for installing and leveling doors and windows. Enables efficient lifting with minimal effort. Features a fully sealed valve that prevents leaks and supports repeated use. Each air cushion can lift up to 150 kg.