Tether Tools AeroTab Universal Tablet System L2 Compatible with tablets with a diagonal ranging of 13.5(34.3cm) to 20(51cm) Accommodates tablets up to .75(1.9cm) thick Works with tablets using protective cases within the above ranges AeroTab L2 includes 1/4-20 tripod thread + Arca-style receptor Made in the U.S.A; Tether Tools Lifetime Warranty