Unirac Horshoe Shims Cat. No. UN-99010x Weight 1 lbs
Horseshoe shaped shims level or raise standoffs and L-feet to precisely align rails. Shims come in three color-coded thickness in packs of 20 each. Colors: UN-990105, 1/16 inch blue : $1.50 UN-990106, 1/8 inch red plastic : $3.00 UN-990107, 1/4 inch black : $4.50 UN-990108, Black tapered shims : $11.00