Yamashita would be one of the leading Japanese brands of squid jig on the market.
Their 'EGI Oh Q LIVE' version features a new keel design and sharper nose for optimum action, and an internal rattle claimed to attract squid from afar.
The new outer 'skin' is a thermo dynamic feature that changes colour depending on light, and offers texture that creates more tension in the water on the drop, where squid usually attack.
Various luminous 'glow' points can be seen under light as compared to previous generations below.
Without doubt the Yamashita EGI - Oh - Q jig would be a good first choice and is naturally available in a huge range of colour options.