Didn't find any at walmart.com but found a few others:

Slime Power Spair Flat Tire Repair Kit — Model# 70004 | Tire Repair + Sealant | Northern Tool + Equipment

MotoSpair Tire Repair Kit - JCWhitney


Slime Safety Spair : Target

Each a bit different, leaning towards the one at Northerntool. Compressor looks much more substantial and the plugs could be handy too.