Kaiser s tips are high quality and made of stainless steel for long lasting wear. This set includes a plain tip a rosette tip and a piping/writing tip as well as the coupler and plastic bag.Set includes: 3 Stainless Steel Tips Plastic Ooupler Plastic Icing Bag Tips are 30-5 (4mm) 34-3 (11 mm) 43-5 (11 mm)