Image Item No. Description  30397  Technic, Link 1 x 5 Catalog: Parts: Technic, Link  2739b  Technic, Link 1 x 6 with Stoppers Catalog: Parts: Technic, Link  2739a  Technic, Link 1 x 6 without Stoppers Catalog: Parts: Technic, Link  6247  Technic, Link 1 x 11 Catalog: Parts: Technic, Link