There are 4 products.
The Bear kit is a primitive kit with return it allows you to extend a little more length than a primitive beginner kit while keeping simplicity and reduced weight.
The Wolf kit is intended for those who want to orient themselves later on the longline highline and not buy the entirety of a Longline kit, it is intended for those who have knowledge and practice of knots, in particular the half capstan on which rests the entire braking system.