Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: very stable, heavy duty

This step stool works very well. It's very sturdy and doesn't wobble or shake at all when I am standing on the top step. I weigh 204 lbs. It is easy to unfold. The top step snaps into a locked position so that the stool doesn't shift while it is being used. The lever to unlock the top step is easy to manipulate assuming that it is pressed in the correct direction. The correct direction to press the unlocking lever is in, towards the middle of the stool, not down towards the floor. The stool weighs 15 lbs according to my bathroom scale. It's fine for my wife but the weight and bulky size is a bit too much for my youngest kids.Dimensions: When folded for storing, the stool is 35 1/2 inches tall and 2 1/2 inches thick. The width is 18 1/8 inches. When unfolded for use, the bottom step is 9 inches above the floor and the top step is 18 inches above the floor. It is 32 1/2 inches tall when unfolded for use. The footprint when unfolded for use is 18 1/8 inches by 19 1/2 inches.