This is the Team Associated Red Motor Spring Firm. FEATURES: Steel construction, red in color Firm spring tension (11 ounce rate) Works with standard (upright) or laydown motor brushes Can be used with most open endbell type motors on the market such as Associated, Reedy, Yokomo, Kyosho, Epic, Trinity etc. INCLUDES: Two motor brush springs COMMENTS: This is installed on the post on the endbell The bent side goes to the motor brush and the straighter side goes on top of the brush hood COMMENTS: Also available is an Extra Firm Spring - ASCC0783 kpm03/10/2005 ir/jxs