Impact MEI-1LS, Open Ear Insert, Left Ear Small Quantity in Basket: None Code: MEI1LS Price: $10.00 Shipping Weight: 1.00 pounds Quantity: Impact MEI-1LS, Molded Gel Open Ear Insert, Left Ear, Small. For use on all Acoustic Tube Accessories. Available for Left or Right Ear, In Small, Medium & Large Sizes.