效果：

两个不同颜色的盒子，

却可以改变自己的体积，

互换大小，每次互换后，就会变出一个海绵球。

直到ending可以变成大的海绵球或者自己喜欢的结尾

非常巧妙的设计，

非常实用的道具，

无角度限制，

可以在任何地方表演。

(此道具已经绝版很久，最后还剩下少少，卖光后不会在出产，ebay上已经炒到上百美金，刘谦早期在电视上有表演过)

注：全套道具包括:天洋套盒2个+红.黄.兰色海绵球各1个(另:结尾用的大海绵球需自行购买)

附赠天洋套盒教学

被评为最好的近景魔术之一的作品。

视频演示:

https://tv.sohu.com/v/dXMvMTU2NjIyNDYxLzYwMTIxNDY3LnNodG1s.html?spm=a2h0c.8166622.PhoneSokuUgc_1.dtitle

Parabox Tenyo (Small)

Effect: The magician opens a red box and reveals a black box inside. Inside the black box a red sponge ball can be seen. The red sponge ball is removed, now the red box is closed and put in the black  box (the box which was on the outside before is now located inside the other box).

The boxes are opened again, now inside the innermost box, a blue sponge ball is being found. Again the boxes are closed (now red box is on the outside again, and the black  box is inside). After opening the boxes for the last time, a yellow sponge ball is revealed.

Now the 2 boxes can be shown to be exactly the same size.

It is possible to hand out the boxes, the yellow, blue and Red sponge ball.

Comment: "In my opinion one of Tenyo's best tricks; recommended for everyone."

Demo: https://youtu.be/d4YFLwF6kes