Build a Safe Digit Lock VS a Safe Combination Number Lock

Build a Safe Digit Lock VS a Safe Combination Number Lock - Which one do you prefer!! Please share your idea and comment down below video. Thank you for watching!! Please subscribe to get more interesting videos: https://www.youtube.com/channel/UCNZMEiM-ZMYmEk2CG3mr1_Q?sub_confirmation=1 Build a Safe Digit Lock ================== You need: - Cardboard - Switch - Magnets - Rubber band - Ice-cream stick - BBQ bamboo stick and chopstick Cardboard Measurement: ===================== (cm = centimeter) 15cm x 1,5cm = 1 piece 15cm x 2,5cm = 2 pieces 15cm x 15cm = 3 pieces 25cm x 15cm = 2 pieces 25cm x 16cm = 2 pieces Build a Safe Combination Number Lock ================================ You need: - Cardboard - Rubber bands - Ice-cream sticks - BBQ bamboo sticks and chopstick Cardboard Measurement: ==================== (cm = centimeter) 3cm x 12cm = 2 pieces 3cm x 20cm = 2 pieces 10cm x 10cm = 1 piece 12,5cm x 20cm = 1 piece 15cm x 25cm = 2 pieces 16cm x 16cm = 2 pieces 17cm x 25cm = 2 pieces