How to use watch repair tool kit

This video will shows us following details:
How to replace watch batteries
How to open a watch case
YISSVIC Watch repair tool kit on Amazon: https://www.amazon.ca/s?k=watch+repair+kit&ref=nb_sb_noss+&field-brandtextbin=YISSVIC

This set of 183 pcs watch repair tools includes:
144 x Hinge Pin Lugs (18 lengths); 3 x Pin Punches (0.8mm / 0.9mm / 1.0mm); 1 x Watch Band Holder; 1 x Adjustable Case Opener; 1 x Watch Case Opener Accessories; 1 x Watch Case Holder; 1 x Watch-band Strap Link Pin Remover+ 5 x Spare Needles; 1 x Small Hammer; 1 x Spring Bar Pin with Scale; 1 x Blue Screwdriver + 4 x Spare Needles; 1 x Tweezers; 1 x Watch Back Case Knife; 1 x Case