How much does this cost to the nearest dollar?

Jiayouy 3 Pack Guitar Humidifier Sound Holes Humidifier for Wood Instruments Humidity Care System Prevent Cracking 3 color
Features A dry guitar can warp, shrink and worse yet, crack! The Humidifier safely releases moisture evenly to eliminate these potential problems.Drop the water into the hole in the top or Soak the sponge in the water, Protect your guitar from dry weather. Specifications Color Black White Silver Meterial Plastic; Sponge Size of base Total height Package includes 3 x Humidifier. Protects you precious instrument from shrinking, warping and cracking in the driest and toughest conditions. Releases moisture evenly and slowly inside your guitar to maintain proper humidity level. Sponge design guarantees it doesn't leak in any way. Suspended by the strings, never

Price is $9.00
Price: $8.97