Includes 2 sets of springs whic are blue and red. Blue are stiff and red are soft. Also included are a pair of dustproof sleeves and a couple of screws. To help ensure a fit please check measurements below. Measures 110mm long between center of fixing holes. Total length end to end 118mm. Diameter 17.65mm at the widest point. To suit 3mm screws at the bottom and 4mm at the top. Weight is 67 grams.