New Libra 12" electric trailer brake shoes with linings kits for replacement Fits 12" x 2" electric brakes This listing is for 2 pairs, replacement for one axle Each pair includes: 2 shoes and linings (1 primary + 1 secondary) 2 shoe hold down springs 2 hold down pins These brake shoes kits are from our warehouse stock, which we wholesale to US trailer axle manufactures