| 摘要 |
For enveloping upright elements such as posts of various cross-sectional configurations at ground level so as to inhibit the growth of vegetation, a collar is formed of flexible, water-resistant sheet material and a main opening is formed therein from which a slit extends to the outer edge of the sheet of material, the slit being for the purpose of facilitating envelopment of a post and the like at ground level. A flange is formed integrally with the sheet and is disposed about the opening formed therein and the opening and flange are configured so as to envelop closely the post or other similar element.
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