Each BC13HP kit includes: 2 x Pistons (OD = 30.0 mm / Length = 35.0 mm) - 2 x Pressure Seal - 2 x Dust Seal - 2 x Rubber Boot A - 1 x Rubber Boot B - 1 x Bleed Nipple - 1 x Bleed Nipple Cap - 2 x Copper Banjo Washers - 1 x Pot of Red Rubber Grease ---- Red rubber grease is included to provide lubrication for assembly, protect from dry burn, and prevent swelling and hardening of rubber hydraulic component seals.