Right now there are 375 deals from Amazon Resale, formerly Amazon Warehouse Deals, in Pet Supplies › Dogs › Training & Behavior Aids. These are inspected returns and open-box items that Amazon sells and ships itself. WarehouseHunter puts each one next to its current new price, so you can see what you save at a glance.

Brands with the most offers here: PetSafe, SportDOG, System, Carhartt, Joytale, PLUTUS PET, Petbobi, Snagle Paw. Every item is a one-off, so the stock moves all day and new deals keep arriving.