Sphenoid Cov pob txha

2 npaug qhov loj me, cov qauv no qhia cov duab ntxaws ntxig, contour, thiab tus kws kho mob ntawm sponeoid tsev, suav nrog cov fissures thiab foramens. Ua los ntawm qib PVC zoo.

Dim: 18 * 25 * 25cm