Warm Jacket – thermo storage cloth will transfer any light into heat for a more natural appeal. Tin Sinker – environmentally friendly tin sinker. Double Crown Hooks – stainless steel hooks. Slim Nose design – Yamashita have a patent on the slim nose design on the LIVE jigs. This slim nose helps impart a sharp darting action (more action with less effort from the angler). 490 Glow was developed by Yamashita after research showed the best wavelength of visible light for the squid eye to see is 490nm. UV Body – reacts to UV light (can not be charged up like a glow body) Also know as KEIMURA. Action – The tin skiner LIVE will jump higher with each rod action compared to the lead sinker LIVE, this gives the angler more action over a shorter distance. The side to side darting action is the same.