Laptop transformer strain reliefs

I call these wrap caps. The idea is to reduce cable strain by making the twists on the cable less severe. Now, while wrapping the cable, it can only be bent so sharply before the wrap caps get in the way.

These are designed for use with a Thermaltake LUXA2 EnerG Bar 65W Universal Laptop Adapter (http://www.microcenter.com/product/471927/luxa2_energ_bar_65w_universal_laptop_adapter). The caps are printed in PETG and the band is printed in TPU.