This pair of Inserts has the following indications of use: - For all track conditions, even the most punctured, its material guarantees the maximum grip - For all temperature conditions its material guarantees maximum stability This pair of Inserts has the following technical features: - Shaped profile designed for the complete filling of the rubber, to guarantee maximum grip - Closed cell foam material designed exclusively for modeling - Pressed insert for maximum balance, regularity of operation and duration for the whole life of the rubber The main measures of this insert are: - External diameter Insert mm.160 Included in the purchase package you will find: - 1 Pair of Inserts - Total width Insert mm.60 This model of circles is adaptable to the following tires: - For all GRP Tires of the 1: 8 BUGGY BIG line - For all Tires 1: 6 BUGGY BIG, of all brands