Blum Movento locking devices makes attaching and removing The Movento Concealed Drawers Slides. The Blum Movento Blumotion under-mount slides are the Cadillac of modern kitchen cabinet drawer slides. Blum's Blumotion Soft-Close technology is known around the world for its quiet and smooth motion. The Movento concealed slides incorporate an innovative nylon gear system to minimize friction, plus four different adjustment mechanisms to simplify the fine-tuning of drawer position for a precise fit. Sold in pairs with instructions, mounting hardware and locking clips included. Made in Austria.