Jessup ULTRAGRIP utilizes a manufacturing process which makes the grit more aggressive for extra traction. Silicon carbide particles bite your shoes for a grippier feel than any other griptape. Easy application to your deck, trims without tearing, extreme durability. When you know the ride you're looking for, we got you gripped. Pure black 9" x 33" boxed sheets come packaged 20 in a pack. Made in the USA.