Petz Gluing clamp for violin/… Petz Gluing clamp set for violin/viola, ten parts Item No. ZN43 Petz Gluing double clamp for … Petz Gluing clamp set for violin/viola, ten parts. (4x single-, 2x double-, 4x 3-part clamp) × Petz Gluing clamp set for violin/viola, ten parts