The rug came for a month. Specially took Gray, so that the dust from the filler was not so visible. There was a chemical smell, ventilated on the balcony. The holes themselves, those in the depth of the "hole", 3mm, the holes at the entrance to the "hole"-5mm, so that it is suitable for small filler. From the particles of the filler on the apartment will not completely relieve, but most of the mat delays. Great device, I think.
If someone wants to get the goods in half a year, then buy from this producer
Normal mat, took Gray, so that there was not particularly visible traces. We use a combed clay filler. Now in front of the catnip (tray) there is no scattered filler. Velcro in the Mat-in my opinion is not needed. You can take it. Sold normal, even extended the protection period, despite what I have already received, but did not have time to confirm receipt through AliExpress. For this-Special Thanks! Sold takes care of its customers.