PK Block by Chazpro Magic.

This solid wooden block looks like it’s been freshly cut right from a workshop board, natural, simple, and completely examinable.

The block is placed upright on the table (not leaned, unlike other methods). With complete control, the performer concentrates and the block falls over at their command.

No guesswork, no awkward pauses, just pure, direct magic. The block can be examined immediately, and the routine can be repeated as often as you like.
For an extra layer of mystery, cover the block with a clear jar or pitcher eliminating any suspicion of blowing or threads. Watching the block topple inside a sealed “chamber” is downright eerie!

You can also perform a chilling séance-style routine: the “spirit” moves the block to the left or right, answering questions with a supernatural “yes” or “no.”

All effects can be performed seated or standing.
The block measures approximately 3.5 inches tall, 1.5 inches wide, and 0.75 inches thick, with a natural, unfinished appearance.

(Note: To use this PK Block, a second PK-type magnet is required.)