SERAIN Self Watering Spikes, Plant Watering Device Automatic Water...

SERAIN Self Watering Spikes, Plant Watering Device Automatic Watering System Drip Irrigation Emitters Kit with Slow Release Control Valve Switch, for Vacation Business Travel (12 Packs)

SERAIN provides 12 months free return policy if you are not happy with the products.

Specification
Length: 6.2 inch
Adapter Size: 0.8 - 1.1 inch
Maximum bottle water capacity: 2 Liters (67 oz)
Suit for: Potted plants, houseplants, water plants day-to-day, patio plants, herbs, hanging baskets, desk pots and so on.

Package Contents
12X Plants Watering Spike
12X Adjustable Release Valve
12X Anti-tilt Bracket

• [Upgrade Flow Speed Switch] The upgraded plant watering device consists of a slow release control valve switch. Easier to control how much water is being.
• [Anti-fall Bracket] You never complain that it is impossible to get these to stand upright with the weight of a 2-liter bottle. Added a fixed bracket to the drip irrigation emitters, the device can be windproof, rainproof and bear more weight. 
• [Easy to Install] Upgraded slanted universal socket with a 0.8 - 1.1 inch diameter opening (Pepsi bottle, Coca-Cola bottle, Lipton bottle Dr. Pepper bottle, Evian bottle, DASANI bottle, AQUAFINA bottle...). Either drill holes or cut the bottom of the bottle and regulate control valve to adjust the speed of flow.
• [Enjoy your Vacation] You just need to set device's flow rate to meet your individual plants need. Enjoy your vacation or business travel, leave your plants to us! The sustained release drip of irrigation drippers lasts for 1-15 days!
• [Service Guarantee] The package includes: 12X Plants Watering Spike, 12X Adjustable Release Valve, 12X Anti-tilt bracket. If it confuses you about how to calculate the water flow rate, please contact us. We are always here to help you.