Unlike other spin vanes on the market XsWings have been developed to both perform and LAST - being made of a much tougher material than others.  A positive effect of this; they are also easier to fit - of great help to those who hate fletching other spin type vanes.

40mm vanes (recurve max 45#)
50mm vanes (recurve and compound max 49#)
60mm low profile vanes(recurve indoor max 45#)
60mm high profile vanes (compound and recurve over 50#)