Easton Recurve Pin Nocks Groove Large 12 Pk Black Large. s Pin Nock is made for Easton?s ultra slim Target arrows. Compatible with the X10 A/C/E Pro Comp and and Avance arrows. Features of Easton Recurve Pin Nocks: Corresponding pin required 12 pcs recurve bow nocks Package Contents: Easton Recurve Pin Nocks Easton 431472: Recurve Pin Nocks Groove Large 12 Pk Black Large