The present invention relates to gripping means, stretching apparatus and a method of stretching a pelt on a pelt board. The gripping means comprises a set of gripping elements comprising a first gripping element and a second gripping element, each having a gripping surface wherein a longitudinal extend of said gripping surface of said first gripping element in a direction parallel to a longitudinal centre axis of the pelt board is of a convex shape configured to correspond to a concave shape of said gripping surface of said second gripping element, such that when said gripping surfaces are in an opposing arrangement and a pelt is arranged between the gripping surfaces, the pelt can be gripped by the gripping surfaces by mutual displacement of the gripping surfaces, said gripping surface of said first gripping element comprises a surface curvature at a first point (P1) having a first radius of surface curvature (R1), and said gripping surface of said second gripping element comprises a surface curvature at a second point (P2) having a second radius of curvature (R2), said first point (P1) and said second point (P2) are opposing points in said opposing arrangement, wherein said first radius of the surface curvature (R1) is smaller than said second radius of the surface curvature (R2) by 10-40 %, such as by 15-35 % or such as by 20-30 %.
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