Material: Stainless Steel Color: Silver Tone Coupler Size: 24 x 32mm / 0.95 x 1.27"(D*H) Tip Size: 18 x 27-32mm / 0.71 x 1.06-1.26"(D*H) Box Size: 195 x 130 x 35mm / 7.68 x 5.12 x 1.38"(L*W*H) Package Contents: 24 x Cake Decorating Tips 1 x Coupler 1.Made of stainless steel, long-lasting, corrosion resistant, non-stick 2.Reusable plastic couplers are easy to switch quickly from one tip to another tip 3.This all in one kit is great for beginners or experienced cake designers