Prolonging the life of any RC body shell is important. The die-cut foam donut is adhesive backed to attach itself to the body and the foam cushions the landings from there.
JConcepts S2 - Rc10B7 Body W/Carpet/Turf/Dirt Wing Lw JC0615L C
JConcepts Detonator-RC10 Classic Body w/5.5" Wing JC0264 C
JConcepts F2-Losi Mini-B Body w/Wing JC0452 C
JConcepts Illuzion-Rustler XL-5-2011 Ford Raptor SVT Body JC0210 C
JConcepts 1978 Chevy K10 Tuck Body 12.3� Wheelbase JC0465
JCONCEPTS F2 - SCHUMACHER CAT L1R BODY FITS - CAT L1R, STANDARD WEIGHT No. 0602