Abstract: Disclosed is a small animal intraventricular injection compensator for injecting a drug into a desired location through a syringe, the compensator including: a guide part provided with a guide hole into which a needle of a syringe is inserted; a body comprising an upper cavity provided inside thereof and a cradle provided to seat the guide part on an upper side thereof; and a fixation part integrally provided with the body or separately provided, and comprising a lower cavity provided to allow a head accommodation space, which a head of a small animal may enter into or exit from, to be provided inside thereof by corresponding to the upper cavity.

Abstract: The present invention relates to an auxiliary wheel for a lawn mower which includes an installation unit coupled to a main body of a lawn mower, a swing unit coupled to the installation unit to be swingable in one direction or the other direction, a wheel unit connected to the swing unit to be swingable with the swing unit, and a fixing unit installed on an outer portion of the installation unit and configured to fix the swing unit to be swingable in the other direction. When the wheel unit swings in the one direction, the main body is pressed against the ground, and when the wheel unit swings in the other direction, the main body is spaced apart from the ground.

Abstract: The present invention relates to an auxiliary wheel for a lawn mower which includes an installation unit coupled to a main body of a lawn mower, a swing unit coupled to the installation unit to be swingable in one direction or the other direction, a wheel unit connected to the swing unit to be swingable with the swing unit, and a fixing unit installed on an outer portion of the installation unit and configured to fix the swing unit to be swingable in the other direction. When the wheel unit swings in the one direction, the main body is pressed against the ground, and when the wheel unit swings in the other direction, the main body is spaced apart from the ground.