SKF seals have been designed and manufactured to improve durability, performance, and smoothness. This seal kit is for 48mm WP forks found on select KTM, Husqvarna, Husaberg, and GasGas models. Highly durable for better protection from water penetration, dust, and mud. General reduction of wear and air suction inside fork Offers better UV resistance over traditional seals Multiple compounds and styles offered: Single lip, SKF green XNBR Double lip, SKF green XNBR Dual Compound, SKF green/Orange XNBR Standard black seals are made of a high quality NBR (Nitrile Butadiene Rubber). The signature green seals are made of a proprietary blend of XNBR (Carboxylated Nitrile Rubber) to offer low stiction performance. The new dual compound seals are based off their successful green seals, but feature newly developed compounds and geometry for even better sealing and contamination exclusion. KIT INCLUDES: (Enough for ONE fork leg) 1x oil seal, 48x57.9x9 mm 1x dust seal for a single fork leg, 48x58.4x5.7mm *When rebuilding a set of forks, order a quantity of two.