LTDF-105-R SS Tread SR Smith 20 Elite 15° Tilt 19-1/8 x 3 w/o Hardware 20 Elite Stainless Steel Tread (15° tilt). Made of durable 304 stainless steel. 19-1/8 total length 3 wide with a 18-1/4 centerline mounting distance. 15° forward tilt when properly installed. Hardware not included: 3/8 x 2-3/4 bolts and hex nuts sold separately. Recommended for standard lifeguard chair and therapeutic ladder. Note: The end caps are unique to 15 degree model and differ than LTDF-103