A wheel balancer includes a shaft adapted for receiving a wheeltire assembly. A turning bracket is pivotally supported on the side portion of a lower arm fixed to the upper rail. The pump moves fluids by direct mechanical displacement from two micro-syringes arranged in parallel. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead. The access tag holder of the present design has open front and back sides to allow for the display of the access tag to a tag reader. In one aspect, the cooking vessel has an exchangeable handle, one of the handles being elongate.