Product size about :46*20cm/18.1*7.8in Product color: As shown in the figure Product material:Stainless steel + rubber product features: materials: This material uses high-quality stainless steel and sponge to prevent bending when exerting force. At the same time, our sponge makes it difficult for you to lose your hand during training, so you can use it better. Double-pole double suction cup: This product uses two large suction cup bases, because the large suction cup has a larger force area and safer exercise. At the same time, it makes the adsorption stronger, the non-slip is more stable, and the strength is increased, making your exercise more convenient. Three-level height adjustment: Three heights are set. You can adjust to a height that suits you, or you can exercise step by step, which can effectively avoid the problem that you use the same height for a long time and cannot achieve the training effect. Here, you don't have to worry at all. Ergonomic design: The fitness equipment adopts biomechanically optimized heel grooves to firmly support your feet, enhance force distribution and comfort, and achieve maximum sit-up efficiency. Suitable for all kinds of floors: The sit-up fitness equipment can be safely installed on surfaces such as tiles, hardwood, marble, etc., without scratching or damaging the floor. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Abdominal training aids