An ordinary 260 twisting balloon is placed in a metal tube with holes in the sides. Two solid nails are apparently passed though the balloon! If you use semi-transparent balloons, the nails can be seen inside the tube criss-crossing through the balloon. Remove both of the nails and then remove the balloon intact. The balloon is ungimmicked, and both the nails and cylinder are completely examinable before, after, and even during the effect. Includes 3 inch diameter x 4.5 inch long aluminum tube, 2 nails and starter balloons. Made in the USA! Packs small, plays big!