Couch arm protectors: ergonomic design that follows the palm and finger outline to provide a natural, comfortable grip. Also functions as an auto safety door handle cover. Car roof grab handle: designed for rehabilitation patients, the elderly, handicapped, children, pregnant women, and others who need assistance when entering or exiting a vehicle. Car roof handles: compatible with multiple setups; universal fit for car, truck, van, SUV, bed rails, bed frames, bed columns, and similar handles. Security door knob: sturdy and nonslip; made from a comfortable webbing material; portable and easy to use; supports elderly assistance for car handle use. Use scenarios: In the car, the car roof grab handle helps users with steady entry and exit, reducing the risk of slips. At home on the couch, the arm protectors provide a secure, comfortable grip when getting in and out of seating. In a bedroom or near a bed, the universal car roof handle can be attached to bed rails or frames to assist getting in and out of bed.