A good way to increase your vertical is get a medium size box and jump up on it then when you come back down quickly jump back up. Do that for about a minute or two and over time your vertical will increase.
My vertical is also 18 inches
Here this is called Air Alert 3. It is usaully 30 bucks. But I found a website that will give you the complete chart that you would normally pay for. It takes 15 weeks. Piece of cake for me though, gained 6 inches. Not as much as they say but still works. But makesure you follow up DONT MISS A DAY! Here’s the website,
January 8th, 2009
Posted in 
Tags:
Ankle weights helped me
A good way to increase your vertical is get a medium size box and jump up on it then when you come back down quickly jump back up. Do that for about a minute or two and over time your vertical will increase.
My vertical is also 18 inches
go to the gym work on calf excersises
Here this is called Air Alert 3. It is usaully 30 bucks. But I found a website that will give you the complete chart that you would normally pay for. It takes 15 weeks. Piece of cake for me though, gained 6 inches. Not as much as they say but still works. But makesure you follow up DONT MISS A DAY! Here’s the website,
Watch a kangaroo then imitate them…