汤马托易士 同级生: eight firm lower blocks dominate the feedback

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Dimensions and material

The review records 546g, a 16.5cm overall length and a 12.5cm channel. The body is wider at the front and narrower behind, with an upward-sloping entrance face. Detailing is coarse and the opening simply circular. The exterior and upper channel wall are -1 on the relative tactile scale: soft and stretchable, with some odor and more noticeable oil release. The lower wall is +1. Similar colors still show a material boundary. These are not standardized hardness values.

Two-sided channel

Interrupted longitudinal textures line the upper wall. Eight square firm blocks sit in ordered rows in the middle of the lower wall. The downward-curving channel and body shape favor one clear orientation. The interior is spacious, especially around the blocks, and air can remain after attempted release; uniform negative pressure is not established.

The blocks create vertical variation and strong resistance, but their regular arrangement directs contact into gaps and edges. Rounded corners do not eliminate firm scraping from the harder material. Lower-wall feedback overwhelms the softer upper textures and body feel, leaving little overall variation.

Original verdict

Recommendation: 3 stars, without numerical category scores. The reviewer found the initial stepped feedback novel, but repeated use monotonous and less comfortable. The design felt more like testing an idea than a fully coordinated layout. No lifespan, material-safety or long-term maintenance testing is supplied, and the block layout does not guarantee broad suitability.