Line by Chiam Yu Sheng and JT Magic (Blue) Kozmo Then it had to be

Then it had to be wrapped around a tube

Weight A Second - an impossible estimation routine by Stefan Olschewiski

Card miracles once only attainable to masters of sleight of hand can now be perfected and performed in a fraction of the time with a prop nobody will ever suspect you're using

Keeping a ball hidden in a cup as you place it mouth down onto the table

Line by Chiam Yu Sheng and JT Magic (Blue) Kozmo Then it had to beLine is a novelty visual effect created by Chiam Yu Sheng from Singapore. In this effect, a spectator selects a card and signs their name on it. The magician then loses the card in the deck. Taking another card, the magician draws a line with a marker on its back. With a flick, the line vanishes instantly. Finally, the magician spreads the deck, revealing the spectator's signed card with the line now appearing on its back! Line can also produce