New shock cord now available. This is 3/8 inch wide material. Available in a package of 4, each about 6′ /72″ long.
Choose from different strengths. Sunward kits generally use the 1/4″ material in most kits. The 1/8 material is for smaller light weight rockets. The 3/8 for larger rockets such as G powered kits.
The shock cord length should be about twice the length of the body tube of the rocket.