- Unique Bottle Design: Each bottle in our set is thoughtfully designed at an angled tilt for enhanced stability when inserted into the soil. The textured surface increases grip, making installation easier and preventing slips. With a generous capacity of 500 ml, these plant watering devices ensure long-lasting hydration for your plants. - Innovative Valve System: Our drip spike features a slow-release control valve with two separate water dripping paths to prevent clogs and ensure smooth operation. The adjustable drip rate allows you to customize the watering frequency from one drop every second to one drop every 90 seconds, accommodating your watering needs for vacations ranging from 1 to 15 days. - User-Friendly Operation: This drip irrigation system simplifies watering without complex installations. Simply fill the bottle with water, attach the spike, and turn it upside down. The cone-shaped spike easily penetrates the soil without damaging plant roots. The dual-channel outlet design allows for steady dripping, ensuring no blockages for effortless watering. - Versatile Compatibility: Our plant waterer set includes 500 ml bottles that are not only practical but also visually appealing. They are compatible with bottles measuring 1.10 to 1.18 inches in diameter, providing flexibility and convenience. Whether you have vegetables, potted plants, herbs, or hanging baskets, our self-watering system is the ideal gardening assistant. Enjoy your time away while your plants receive the essential care they need.