Kit comprises of 1 spring and 5 seals All seals and springs required to service your AKS1300 1 x spring approx 32mm across 1 x plastic cup for the spring to sit in 35mm across and 7mm thick 1 x O ring 33mm across and 8mm thick 1 x seal ring id 39mm od 48mm and 2mm thick 1 x seal ring id 31mm od 65mm and 3mm thick 1 x seal ring id 22mm od 46mm and 3mm thick Part Number 246340 Genuine AL-KO spare.