This crokinole disc is made of hard maple. Hard maple is the standard for crokinole discs because it does not dent upon impact. Available in large (1 1/4" diameter) or small (1 1/8" diameter) discs. All our crokinole discs are made in the USA. Details:• Yellow crokinole disc• Made of dent-resistant hard maple• Shiny Finish• Comes in large or small discs - use the selector to choose your size of disc• Made in the USA Large Tournament Style Discs:• Discs are 1 1/4" diameter x 3/8" thick (3.2cm x 0.9cm)• For NCA Standard boards and Large Traditional / Octagonal boards• For boards with a 20 hole that is 1 3/8" (3.5cm) and a playing surface of 26" in diameter or more Small Traditional Style Discs:• Discs are 1 1/8" diameter x 3/8" thick (2.9cm wide x 0.9cm thick)• For octagonal boards with a playing surface up to 24" in diameter• For boards with a 20 hole that is 1 1/4" (3.2cm) Please note: This disc is flat on both sides which is tournament standard. Availability:In stock now!