The All new G-Field Premium Zone #1 has an SS304 CNC precision milled body with an SS303 new design 3RTNC face insert, It features the new design Aluinser technology and has a perfect head weight of 350 grams. Available in different colors such as: Black, Blue, Red, Orange, & Green with matching grip. These putters are in such demand please allow up to 4 weeks.