Medium sized ring opening pliers that are 6 inches and made of 410 ASTM stainless steel wit brass tips. These pliers work best on rings 1/4 to 3/4 inches in diameter and up to 6 gauge in thickness. The head of the pliers has three notches to accommodate different ring diameters. The brass tips eliminate the risk of scratching your jewelry. Brass is softer than steel so misuse can cause the tips to bend and deform; use carefully!