High quality foam rubber. Works great for protecting your receiver and fuel tank from vibration and also gives protection during a crash. Available in two sizes 1/4 (6.3mm) DUB513 and 1/2 (12.7mm) Each piece measures 7 (177.8mm) X 11 (279.4mm).
Used with permission, copyright 2018 Dubro RC/Horizon Hobby, Inc. Copyright 2018 Brey Corp. t/a Hobby Works.