Specifications Features Actual dimensions: Outside: 4.125" x 4.125" (10.5cm x 10.5cm) Inside: 3.6" x 3.6" (9.1cm x 9.1cm) Lengths: 4ft (48") Smooth on all 4 sides Use: Post sleeves Matte finish Weight: 1.5lbs/ft No cracking, rotting, splintering, peeling No noticeable fading Radius edge