heres the deal: skateboards break easily but that is becuase they have no flex. also you arent jumping down onto these like you would a skateboard. they are durable and they are stiffer than the invader but the new butter zone works a lot better (i asked max hill). im gettin a pair and they should be dope. my parks is rails only so these are gonna be my meat and potatoes. 115-88-115 are the dimensions and they come in the sizes 155, 166, and 177. they have fatty base and edge and they also have carbon olliband and butterzones and the bases come in either blue, white, or green for all sizes. if you are light like me and you do a lot of rails and even some bigger jumps, get these. the only things these skis might not kill on are halfpipes or park shoot jumps but then again, Max Hill weighs a lot more than me and he did i think a 90 foot zero spin on these in outdoor graduation....