Polymer base. Oval 4 inches by 3 inches. $4.50 | Booster for S4088 oval polymer base. This lifts the base, giving the base more room under the base to allow for components. Photo shows booster alone and with base. Booster and base sold individually. $3.00 | Octagon polymer base. 5 1/4 inch by 4 1/8 inch. $6.00 |
Small octagon base. 2 1/4 inch by 2 1/4 inch. $4.00 | 3 1/2 inch round polymer base. $4.50 | This is the booster that goes under S4087. Photo shows booster and booster on base. Bases and boosters are sold individually. $3.00 |
2 3/4 inch round polymer base. $3.50 | 2 3/4 inch booster for S4086. Photo shows booster and booster with base. Bases and boosters are sold individually. $2.50 | 5 inch round polymer base. $6.00 |