Nothing lasts forever, but MIP Roller Pucks come pretty close. This all in one kit is directly targeted towards those that have MIP Pucks (steel outdrives) and want to upgrade to MIP’s NEW Roller Pucks system, which features a metal rolling bushing rather than a plastic sliding puck. MIP’s Roller Puck refresh kit is a direct replacement for those kits that use the #1 Pucks. Keep saving money and keeping those drivetrains fresh with MIP’s Roller Pucks System, .150 x .093 Rebuild Kit! 100% manufactured in the USA.