manual slack adjuster:1.spline 10(still can produce of 8,10,14,19,28,272.holes 3(still we can produce holes of 1,2,3,4,5,6,73.net weight:2.3kg4.teeth clearence <6.4mm5.body:precison cast6.life time: >300,000times7.ambient temperature:40 below 0 to 80 degree centigrade.