Flea and Tick Collar for Cats,8-Month Tick and Flea Control for Cats,Adjustable Design-One Size Fits All,Safe & Allergy Free, Waterproof, with Flea Comb,2 Pack 4.1 out of 5 stars 234. 1 offer from $19.96 #40. Hartz Ultra Guard Reflecting Flea & Tick Cat Collar, White 1 Each