Type : as shown , Sturdy & Durable : Our Diameter of wire is 4 . 0mm , thicker and stronger than most of others on the market , All garden stakes are made of steel with green plastic coating , hard to bend , stand firmly , weather-resistant , rust-proof , not easy to fade , durable and reusable , better than wood , well support and protect stem plants . Designed Measurement : 5 pcs plant stakes are 45 cm / 18 inch long , inner diameter of the Hoop is about 6 . 0 cm / 2 . 5inch , open slot is about 2 . 0cm / 0 . 8inch . Fit for most flowers and the plants with small stem , like rose , peony , lily , sunflower , zinnia , tomatoes , young tree , etc . . Functions : The single stem supports and the plants locks can be combined effectively prop up stem plant to grow straightly and healthily , prevent stems from bending and entangling with each other , protect tall flimsy stem plant against strong wind , heavy rain or their own heavy bloom , also help add aesthetic appeal . Aesthetic Appearance : The plant support has graceful line and smooth finish , simple and elegant . Dark green appearance helps to blend into stem plants , nearly invisible , pretty natural . With the support , each stem plant will keep straight and be individual , elegant and graceful . Rational Structure : An open slot is designed for putting the stem plant in without touching the plant too much , effectively reduce damage to the fragile plant; and the inner diameter is large enough for most small stem plants , well support & protect them without causing restriction to growth .