Head Pins and Eye pins are available in various plataings like silver plated headpins, silver plated eyepin, gold plated bead headpins, gold plated eyepins in many sizes. Normally used sizes of headpins & eyepins by jewelers are 0.5 inch, 1.0 inch, 1.5 inches, 2.0 inches, 2.5 inches, 3.0 inches, 3.5 inches, 4.0 inches. So pick the one from following categories suitable for your jewelry.