Handi Treads 3.75 in. x 30 in. Non-Slip Aluminum Tread, BlackHandi Treads Non Slip Aluminum Stair Tread Enhance safety with the Handi Treads Non Slip Aluminum Stair Tread in Black. This durable and rust proof stair accessory is designed for easy installation on wood, concrete, or metal surfaces, providing year round protection against slips and falls. Its raised button surface ensures maximum traction, even in slippery weather. Key Features: Durability: Made from rust proof aluminum for long lasting