Brand New Flange Inserts

Selling flange inserts that comes in a pair (so 2 inserts): - Four 13mm (new) - four 15mm (new) - two 17 mm (new) - two 19mm (new) - two 21mm (new) I bought 2 kits but I only needed 2 sizes so these are the remaining. These are brand new and never used. These fit into 24mm flanges for most pumps. Asking for $5 for each size.