Pro Flyer: His site is sierraprecision.com.There is no part number but what need are the 60 size 100.His number is (440)476 4885.His name is darrell,call him and he will hook you up.He also can put links and doorcollars on them for you,dont forget you will need a retract valve also.Just tell him and he will do the rest.His are the best on the market.You get what you pay for.
Fred