This mega kit is absolutely packed full of useful items providing you with all you need.  The veterinary surgeons act allows you as a pet professional/owner to adminster first aid.  That could be stemming a bleed, to taking a temperature in a dog you suspect is suffering heatstroke.  Here is what it includes:
 
1 x 1oz clotit - suitable for all bleeds including arterial bleeds - This product has been discontinued. Your kit will contain aqueous blood stop powder, a very similar product!
1 x leucillin 150ml spray - antiseptic 
1 x luofucon hydrogel 15g - protects wounds
1 x vinyl gloves - for your protection
20 x cotton buds - great for applying clotit to nails and for cleaning small areas (with cold black tea or chamomile tea)
1 x 30g arnica cream - for clipper rash. grazes, and bites and stings. Very soothing,
2 x cohesive bandage (vet wrap)- remember to unravel first before using to avoid making it too tight. Never apply directly to the skin.
2 x primapore dressings
1 x tick remover
Vitals key fob
Dehydration key fob
CPR key fob
Heatstroke key fob
Bites & stings key fob
External bleeding key fob
Seizures key fob
4 x saline pods - for wounds, use to lubricate eyes and avoid homemade salt water
4 x pet socks - for small to medium paws but they stretch
1 x 5ml syringe
Pack of 5 sterile swabs
1 x ice pack - for heatstroke, to help a bite/sting, useful for fitting dogs
1 x instant hot pack
1 x honey sachet
1 x WASup wipe - for wasp stings
1 x foil blanket
1 x pill giver
1 x pen torch
4 x NO alcohol swabs
1 x digital thermometer - 37.5C-39.2C is the normal range if well
4 x conforming bandages (2 different sizes) - use on wounds, as a torniquet (if you have learnt how to), as a makeshift muzzle, and as an extra lead
1 x scissors
1 x micropore tape
1 x top tip guide
1 x first-aid bag