Injection Molding of Assembly parts of Extension Poles

There are 2 different sizes of the inner part 1 1/8 and 1/ 1/4(pictured). The smaller ratchet part with the grooves is to make an adjustable end with a suction cup to hold onto flat letter signs( changing the price on a gas station sign)20131209_101838 20131209_101129 20131209_101113